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The Offcial Machinist Thread: Revised 01/04/2014

A place to ask general spud cannon related questions.
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Unread postAuthor: Zeus » Tue Feb 19, 2013 3:05 am

If you want to pursue it, I can distribute it inside the country at no risk to you, but getting into another country is another matter. I won't get into legal strife, but the recipient can. Sending stuff is really safe, receiving isn't.

JSR, it's no risk to Evilvet, 1 to 30 years for myself and my partner. Wouldn't have it any other way.
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Unread postAuthor: jackssmirkingrevenge » Tue Feb 19, 2013 3:59 am

evilvet wrote:and welcome to our world.


I'm aware that the gun control situation in your part of the globe is pretty dire, however I don't think a simple stock could be construed to be an imitation firearm of any description. You could be as culpable as whoever sold an individual the QEV, the blowgun etc. ie not really.

If you were selling to the US for example you would have no problems whatsoever in most states even if you sent a completely assembled pneumatic.

Just my two cents, not trying to nudge you towards breaking the law but I think its an easy opportunity to make a few bucks and help the hobby at the same time.

JSR, it's no risk to Evilvet, 1 to 30 years for myself and my partner. Wouldn't have it any other way.


The onus is usually on the person found to be in possession or using the item as opposed to where it actually came from, just be careful :)
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Unread postAuthor: Zeus » Tue Feb 19, 2013 4:04 am

Indeed, possesion of a Class R (full auto anything, bar rubber band guns) is several years in your local correctional facility, but distributing them in some quantity, falsifying declarations, and being in possesion of the parts, is quite a bit longer in Barwon. (This states' "big house", all the bad boys go there, like drug barons and such).
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Unread postAuthor: jrrdw » Mon Mar 11, 2013 5:56 pm

Hoggin out some dead weight on the back of this piston. Using a 2" boring head and a carbide tip cutter. jsefcik's piston valve. The way that it's put together (sealing face past the mid point) this configuration should open better. Multiple surfaces to push the piston back (toolies style) and drum in the rear for stability.

Who ever built the valve housing did a good job, only 2 places for improvment that I can see. 1: Sealing face should be centered and 2: the cylinder should be trued (made round and straight).

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Attachments
Round Bar_RS.jpg
2 1/4" Round Bar
Jessies Piston_0001_RS.jpg
Resizing to 2.168 approx.
Jessies Piston_0004_RS.jpg
Trimming out the sealing face, pedestal/toolies style.
Jessies Piston_0015_RS.jpg
Sized diameter with o-rings installed.
Last edited by jrrdw on Wed Oct 30, 2013 5:00 pm, edited 1 time in total.
Reason: Fixed video.
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Unread postAuthor: jackssmirkingrevenge » Tue Mar 12, 2013 1:39 am

jrrdw wrote:Hoggin out some dead weight on the back of this piston.


Lookin' good!

Multiple surfaces to push the piston back (toolies style) and drum in the rear for stability.


In practice, these surfaces cancel out so it doesn't make it more efficient than a "solid" valve. Weight saving certainly helps though!
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Unread postAuthor: evilvet » Tue Mar 12, 2013 10:50 pm

For JSR
3D printing comes of age

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Unread postAuthor: jackssmirkingrevenge » Wed Mar 13, 2013 1:32 am

The titanium jaw was cooler ;) http://www.telegraph.co.uk/technology/n ... plant.html

... but wasted on an 83 year old woman? Think of what an awesome set of gnashers you could have made...
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Unread postAuthor: Labtecpower » Thu Mar 14, 2013 5:13 am

Hoggin out some dead weight on the back of this piston. Using a 2" boring head and a carbide tip cutter.


did the piston move on the chucks at 9 seconds? :?
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Unread postAuthor: jrrdw » Thu Mar 14, 2013 9:09 am

did the piston move on the chucks at 9 seconds?


No, that was me grabbing the camera. It was sitting on the cross slide beside the tool post so I grabbed it while turning the tail stock handle. Everything moves at once if you look close at the chuck it moves right with the piston.
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Unread postAuthor: CS » Thu Mar 14, 2013 1:00 pm

Nice work jrrdw! Thanks for the lathe video, and picture of the piston.
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Unread postAuthor: Labtecpower » Thu Mar 14, 2013 1:35 pm

Some shiny goods for Jake;;

Image

Aluminium barrel weights, 3x 100g and 2x 50g.

Image

And a soon-to-be bolt for a benjamin air rifle :)
i'm happy this turned out well, the smallest diameter is 1.5 mm. smallest thing i've made on a lathe until now :D
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Unread postAuthor: jackssmirkingrevenge » Thu Mar 14, 2013 2:48 pm

I remember this rifle being mentioned :) great job!
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Unread postAuthor: jakethebeast » Thu Mar 14, 2013 2:56 pm

hehe nice job Lab, the Benjamins owner was already asking me for this :wink:
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Unread postAuthor: jrrdw » Thu Mar 14, 2013 3:19 pm

CS wrote:Nice work jrrdw! Thanks for the lathe video, and picture of the piston.


I still got to make the check valve. You been doing any turning or milling lately?
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Unread postAuthor: jakethebeast » Fri Mar 15, 2013 9:00 am

Not sure if this belongs here, basically it is machined... :roll:

Made this yesterday/today using Tonis wood lathe for rough work, the final sanding and buffing i did with my own axis drill just 15mins ago.

Its e-cig drip tip from mammoth molar :D

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Image

What ya guys think?
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